// 初始化信息
void Init(HttpContext context)
{
this.ctx = context;
isLog = string.IsNullOrEmpty(ctx.Request.QueryString["IsLog"]) ? false : bool.Parse(ctx.Request.QueryString["IsLog"]);
long fileLength = string.IsNullOrEmpty(ctx.Request.QueryString["FileLength"]) ? 0 : long.Parse(ctx.Request.QueryString["FileLength"]);
string src = ctx.Request.QueryString["src"];
string filename = ctx.Request.QueryString["filename"];
// 客户端最后写入时间，考虑到效率，据此简单判断客户端文件是否改变，断点续传时使用(如用HashCode对大文件影响效率)
//string clientLastWriteFileTime = Func.AttrIsNull(ctx.Request.QueryString["LastWriteFileTime"]) ? String.Empty : ctx.Request.QueryString["LastWriteFileTime"];
// 获取文件信息状态
//fileInfo = new UploadFileInfo(userState.UserId, filename, clientLastWriteFileTime, fileSize);
uploadConfig = UploadHelper.RetrieveConfig();
fileInfo = new UploadFileInfo("USERID", filename, fileLength);
// 开始上传
long startByte = string.IsNullOrEmpty(ctx.Request.QueryString["StartByte"]) ? 0 : long.Parse(ctx.Request.QueryString["StartByte"]);
// 并不是获取上传字节
bool getBytes = string.IsNullOrEmpty(context.Request.QueryString["GetBytes"]) ? false : bool.Parse(context.Request.QueryString["GetBytes"]);
if (startByte == 0 && !getBytes)
{
this.WriteLog("Upload Begin");
}
}
private void RetrieveInitParams()
{
UploadConfig config = new UploadConfig();
string fileMode = string.IsNullOrEmpty(Request["FileMode"]) ? "Multi" : Request["FileMode"];
string bMaximumUpload = Request["MaximumUpload"];
string maximumUpload = String.Empty;
if (string.IsNullOrEmpty(bMaximumUpload))
{
maximumUpload = ConverterM2B(config.MaxFileSize);
}
else
{
maximumUpload = ConverterM2B(float.Parse(bMaximumUpload));
}
string filter = HttpUtility.UrlDecode(string.IsNullOrEmpty(Request["Filter"]) ? "" : Request["Filter"]);
if (string.IsNullOrEmpty(filter))
{
filter = config.FileFilter;
}
string maxNumberToUpload = Request["MaxNumberToUpload"];
if (string.IsNullOrEmpty(maxNumberToUpload))
{
maxNumberToUpload = config.MaxFileNumber.ToString();
}
string allowThumbnail = string.IsNullOrEmpty(Request["AllowThumbnail"]) ? "" : Request["AllowThumbnail"].ToLower();
if (string.IsNullOrEmpty(allowThumbnail))
{
allowThumbnail = config.AllowThumbnail.ToString();
}
string isLog = string.IsNullOrEmpty(Request["IsLog"]) ? "" : Request["IsLog"].ToLower();
if (string.IsNullOrEmpty(isLog))
{
isLog = config.IsLog.ToString();
}
string _initParams = String.Empty;
//增加RelateId by dingx_new 2011-7-25
//string uploadPage = Server.UrlPathEncode(config.HandlerPage);
string uploadPage = Server.UrlPathEncode(GetUploadHandlerUrl()); //动态上传地址 2013-11 by dingx_new
if (uploadPage.Contains('?'))
{
uploadPage += "&RelateId=" + this.Request.QueryString["RelateId"] + "&Src=" + this.Request.QueryString["Src"];
}
else
{
uploadPage += "?RelateId=" + this.Request.QueryString["RelateId"] + "&Src=" + this.Request.QueryString["Src"];
}
_initParams += //"UploadPage=" + Server.UrlPathEncode(config.HandlerPage + "?PassCode=" + this.PassCode) + ","
"UploadPage=" + uploadPage + ","
+ "FileMode=" + fileMode + ","
+ "MaximumUpload=" + maximumUpload + ","
+ "Filter=" + filter + ","
+ "MaxNumberToUpload=" + maxNumberToUpload + ","
+ "AllowThumbnail=" + allowThumbnail + ","
+ "IsLog=" + isLog + ","
+ "ContinueSize=" + config.ContinueSize + ","
+ "MaximumTotalUpload=-1,UploadChunkSize=4194304,MaxConcurrentUploads=1,ResizeImage=False,ImageSize=300,"
+ "Multiselect=True,JsCompleteFunction=OnComplete,JsCancelFunction=OnCancel,JsCheckFunction=OnCheck";
this.InitParams = _initParams;
}
//// 获取上传得临时文件夹路径, 也即原Ftp目录路径
//public static string GetTemparatoryDirectory()
//{
// return Config.File_TemparatoryDirectory;
//}
// 获取上传信息配置s
public static UploadConfig RetrieveConfig()
{
UploadConfig _config = new UploadConfig();
return(_config);
}
public void ProcessRequest(HttpContext context, string uploadPath, UploadFileInfo fileInfo, UploadConfig uploadConfig)
{
// 是否已上传完毕
bool complete = string.IsNullOrEmpty(context.Request.QueryString["Complete"]) ? true : bool.Parse(context.Request.QueryString["Complete"]);
// 获取上传进度操作标识
bool getBytes = string.IsNullOrEmpty(context.Request.QueryString["GetBytes"]) ? false : bool.Parse(context.Request.QueryString["GetBytes"]);
// 上传开始位置，用于断点续传
long startByte = string.IsNullOrEmpty(context.Request.QueryString["StartByte"]) ? 0 : long.Parse(context.Request.QueryString["StartByte"]);
// 服务器端文件路径
string filePath = Path.Combine(uploadPath, fileInfo.FileString);
FileHelper.CheckFileFullPath(filePath);
if (getBytes)
{
filePath = filePath.Replace("+", "%2b");
FileInfo fi = new FileInfo(HttpContext.Current.Server.UrlDecode(filePath));
if (!fi.Exists)
{
context.Response.Write("0");
}
else
{
context.Response.Write(fi.Length.ToString());
}
context.Response.Flush();
return;
}
else
{
if (startByte > 0 && File.Exists(filePath))
{
using (FileStream fs = File.Open(filePath, FileMode.Append))
{
SaveFile(context.Request.InputStream, fs);
fs.Close();
}
}
else
{
using (FileStream fs = File.Create(filePath))
{
SaveFile(context.Request.InputStream, fs);
fs.Close();
}
}
if (complete)
{
if (FileUploadCompleted != null)
{
FileUploadCompletedEventArgs args = new FileUploadCompletedEventArgs(fileInfo.FileName, filePath);
FileUploadCompleted(this, args);
}
}
}
}